66322044 has 24 divisors (see below), whose sum is σ = 171946320. Its totient is φ = 22107312.

The previous prime is 66322037. The next prime is 66322057. The reversal of 66322044 is 44022366.

66322044 is a `hidden beast` number, since 6 + 632 + 20 + 4 + 4 = 666.

It is a super-2 number, since 2×66322044² = 8797227040675872, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 66321999 and 66322017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 306939 + ... + 307154.

It is an arithmetic number, because the mean of its divisors is an integer number (7164430).

Almost surely, 2^66322044 is an apocalyptic number.

It is an amenable number.

66322044 is an abundant number, since it is smaller than the sum of its proper divisors (105624276).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66322044 is a wasteful number, since it uses less digits than its factorization.

66322044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614106 (or 614098 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 66322044 is about 8143.8347232738. The cubic root of 66322044 is about 404.7802374262.

The spelling of 66322044 in words is "sixty-six million, three hundred twenty-two thousand, forty-four".